TY  - GEN
A1  - Kliegl, Reinhold
A1  - Olson, Richard K.
T1  - Reduction and calibration of eye monitor data
N2  - The present paper presents FORTRAN programs for reducing eye monitor output to fixations and for mapping these fixations to locations in the stimulus space. Flexible parameters of the fixations program allow for determination of the beginning and end of fixations under different resolution criteria and for indicating loss of accurate measurement. The calibration program is based on a rectangular 9-point fixation grid. Each fixation is rescaled within this grid by solving for a quadratic equation. The rescaled values are output in a flexibly determined rectangular coordinate system that is related to the stimulus space, such as character position on the screen. The programs were developed for the 60-Hz Applied Sciences corneal reflection eye monitor, but they may be used with a number of other systems.
T3  - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - paper 138 
Y1  - 1981
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-39875
ER  - 
TY  - GEN
A1  - Kliegl, Reinhold
T1  - Automated and interactive analysis of eye fixation data in reading
N2  - A package of five FORTRAN programs that provides for fast user-controlled analyses of reading eye fixations is described. The package requires the data to be in a fixation format and to be rescaled to screen dimensions. OLDEYE identifies six types of fixations and calculates descriptive statistics on each of them, on their associated saccades, and on their average pupil diameter. CONVRT represents the text as a string of words that can be coded according to experimentally relevant variables. PLTFIX prints fixation durations by letter position and sequence of occurrence. MODDAT is an interactive program for marking parts of the text in which the data quality is below acceptable standards. It also allows the correction of systematic errors due to calibration or drift. MATCH combines the outputs from OLDEYE, CONVRT, and MODDAT and calculates 11 dependent measures for every word. The output of MATCH is suitable for input to conventional multivariate statistical programs.
T3  - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - paper 137 
Y1  - 1981
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-39861
ER  -